LED high bay luminaire, luminaire output: 73.6 W, including LED converter, DALI controllable luminaire (DALI only), housing made of extra-robust, deep-drawn sheet steel, powder-coated in white. Cover made of clear polymethyl methacrylate (PM) with high breaking strength and optimized stress cracking resistance, particularly resistant to oils, alkalis, ammonia and UV radiation. LED service life 100,000 hours until luminous flux drops to 95% of the initial value. Color location tolerance (initial MacAdam): 2. Luminaire luminous flux: 13070 lm, luminaire luminous efficacy: 178 lm/W Color rendering Ra > 80, color temperature 4000 K. Glare control: UGR < 22 in accordance with EN 12464:2011. Closed, optical lens system. Lenses with diagonal dome structure for maximum efficiency. Symmetrical, wide beam luminaire. Pre-assembled 2 m long connection cable 5 x 1 mm² for very high continuous temperatures (halogen-free, flame-retardant). Vibration-proof (EN 60598-1:2015 / IEC 60598-1:2017 Ed. 8.1). LED risk group RG0 (IEC/EN 62471), lamp wired halogen-free and silicone-free. Note: Before specifying for use in ambient atmospheres with chemical stress, high or condensed humidity, large temperature fluctuations, contact your consultant. Protection class: SC1, protection type: IP66, ambient temperature: -10°C to +55°C, dimensions: 540 x 470 x 77 mm. Weight: 4.9 kg.